Home / 15,432.48-21,300.24-9,061.92

Finding the Fourth Proportional to 15,432.48, 21,300.24 and 9,061.92

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Solution

The fourth proportional to 15,432.48, 21,300.24 and 9,061.92 is: 12,507.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.48 : 21,300.24 = 9,061.92 : x
  2. Step 2: Convert to fraction form
    15,432.48/21,300.24 = 9,061.92/x
  3. Step 3: Cross multiply
    15,432.48x = 21,300.24 × 9,061.92
  4. Step 4: Simplify right side
    15,432.48x = 193,021,070.86
  5. Step 5: Solve for x
    x = 193,021,070.86/15,432.48
  6. Step 6: Final answer
    x = 12,507.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.